Concrete-mixer



- a. JAEGER.

CONCRETE MIXER.

- V APPLIpATWN FILED NOV. 28, 1919. I 1,390,442. Patentedsept. 13,1921.

2 SHEETS-SHEET l.

UV p U I GebhardJae ger' G. JAEGER.

v CONCRETE MIXER, 7

APPLICATION FILED NOV. 28, 1919.

1,390,442 Patented Sept. 13,1921.

2 SHEETS-SHEET 2.

Fig.3.

Gebhard Ja e ger UNITED STATES GEBHARD JAEGER, or COLUMBUS, orrro.

CONCRETE-MIXER.

Specification of Letters Patent. Patnted Sept. 13, 1921.

Application filed November 28, 1919. Serial No. 341,028.

To all whom it may concern:

Be it'known that I, GEBHARD JAncnn, a citizen of the United States, residing at Columbus, in' the county of Franklin and State of Ohio, have invented a certain new and useful Improvement inConcrete-Mixers. of which thefollowing is a specification.

Portable concrete machines of the type having a single opening for the feed and discharge usually halve their mixing vessels set as low as possible and are mounted upon wheels. The primary receiver or bucket for the materials to be mixed rests on the ground so thatthe materials can be conveniently shoveled or discharged-from a wagon thereinto. Consequently the ground position of the primary receiveris somewhat remote from the mixing vessel and the problem is to bring the low-lying primary receiver to the mouth of the mixing vessel Without raising the same to an undue height and to eiiect quick discharge of the-contents of the primary receiver into the mixing vessel.

This problem I have solved generally by hingedly connecting the primary receiver to an intermediate frame, hingedly connecting said frame to the mixer frame and providing means for raising the primary receiver and the intermediate frame together and then the primary receiver alone to the discharging position.

An example of the invention is shown in the accompanying drawings and set forth in the following specification, the features of novelty, being finally claimed.

In the said drawing v Figure 1 is an end elevation of the ma chine showing the primary receiver :in its lowered position.

Flg; 2 isa' similar view showing the primary receiver raised to the positlon'where Fig. 3 is a side view of the apparatus with the bucket omitted. 5

Fig. 4 is mainl a plan view looking downfrom the-line IV -IV Fig. 1.

Inthe views 5 designates the mixing vessel which is pivoted at 5 to swing in asuit able frame 6 mounted on a wheel truck 7 Such a mixing vessel 5 usually has mechanism for revolving it unnecessary hereto be particularly shown or described.

8 designates the bucket or primary receiver. This bucket is hinged at 9 to a frame 10, prismatic in form with trianguwithout departing lar ends, said frame being hinged at 11 to' 'to'each of its opposite sides a cable 12 running over a pulley 14 to a windlassl5, the

latter being operated by suitable power.

A spring 16 connecting the bucket with the frame 10 I tends to hold the bucket against said frame therebypreventing much noise in operation. I

In practice the empty mixing vessel is turned on its pivot 5 to the position shown in Fig. 1.

After supplying the bucket with the materials to be" mixed the bucket and frame 10 are raised together by properly operating the Windlass until the upper face 0 frame 10 (as shown in Fig. 1) strikes the supplemental frame 6 and is arrested thereby after which the bucket goes alone to the posit-ion shown in Fig. 2. In this operation the noseof the bucket is projected into the mouth, of the bucket and the side of the bucket serves as a chute at a steep inclination to discharge the contents into the mixing vessel 5. It may be observed that if the bucket 8 and intermediate frame 10 were made as one rigidly connected structure hinged at ll-the intermediate frame would collide with the rim of the mixing vessel 5 and prevent the desired steep inclination and rapiddischarge of the bucket.

The spring 12 also aids in holding the bucket against the frame 10 so that in the first portion of the, lifting operation the two parts will turn on the hinge 11 and not on the hinge 9.

The forms of the parts'can be changed from the gist of the in vention as claimed.

What I claim is: V,

T1. The combination with a mixing vessel,

f the a frame for supporting the same, of a bucket for the materials to be mixed, a link hingedly connected with both the bucket and frame, means for elevating both the bucket and the link, and means for arresting the upward movement of. the link when the bucket and the link are raised \vitlwut arresting the npwa rd movement at the bucket.

2. The combination Wl't'll a mixing vesseh' a 't'ral'ne for supporting; the 8111110 and a bracket t erthe materials to be mixed, of an intermediate frameof substantially rigl rt triangular prismatic form'liinged along one of its acute angled'rorners to the mixer sup porting frame with its right angled corner uppermost when the prismatic frame is in lowered position and to which the intern-1e diate frame the bucket is hinged along its right angled corner, means for elevating said bucket and intermediate frame, and

means whereby the intermediate frame. is, arrested in its up and movement Without arresting the n'pwa rd movement of the lmcket, substantially as described.

3. .In combination with a mixing vessel, its frame. and a lmrlcet for the materials to be mixed, of an intermediate frame hinged to the mixer frame and to which the bucket is hinged, a s im manner-ting the l melcet and bucket azgainst said intermmliate frame. and means for ra sing HHHl bnrket and lnterme dlate frame, slrlristaantially as. described 

